The burger at Angie Mar’s Le B. can be a rare matter, with only 9 served a night, and only in the bar. At higher than $40, it is Tremendous luxe, one which Mar created famed with the Beatrice Inn: an Angus blend beef is dry-aged for 45 times and dressed with d’affinois cheese, caramelized onions, and a crimson wine sauce. It’s served with sho